<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>表格标签</title>
</head>
<body>
    <!-- 
        border边框：单位是像素
        cellspacing外边距,表格之间的间隙，又是单元格与外部边框之间的间隙
        cellpadding内边距,表格内容与表格之间的距离
    -->
    <table border="1px" cellspacing="0" cellpadding="10px">
        <tr>
            <!-- colspan 行跨列：一行跨多列 -->
            <th colspan="4">成绩</th>
        </tr>
        <tr>
            <!-- rowspan 列跨行：一列跨多行 -->
            <th rowspan="4">科目</th>
        </tr>
        <tr>
            <th>数学</th>
            <th>语文</th>
            <th>英语</th>
        </tr>
        <tr>
            <td>88</td>
            <td>76</td>
            <td>60</td>
        </tr>
        <tr>
            <td>90</td>
            <td>86</td>
            <td>66</td>
        </tr>
    </table>
</body>
</html>